Ah, a topic dear to my heart.
Never heard of a Chemex, either, but I will take a look. I generally just use an old Melitta cone, which requires a slightly finer grind than drip-machines.
My absolute favorite coffee, and one I haven't seen for a while (especially since I'm poor these days), is Sulawesi Toraja Kalossi. Comes from Indonesia, the island of Celebes. It's been so long, I can't quite describe it anymore, but it was nirvana. You certainly can't go wrong with a good Ethiopian.
What I liked to do in the old, flush days was have two or three varietals (cultivars) on hand, and try different blends. I'd have something from each of the major regions: an American (maybe a Guatemalan or a Costa Rica Tarrazu); an Asian (said Sulawesi, or perhaps an Indian Malabar); and an African (Ethiopian, Yemeni, or a Kenya). And just try your own blends, but be wary - my local roaster told me that you never want equal amounts of each kind (either two or three, four tended to get too "watered down" in flavor), but rather one dominant type, with the other two adding their own notes. So, use half Kenyan, then add a bit of a Mexican and a bit of an Indonesian or something.
I was never blown away by the expensive Jamaicans or Hawaiians. Your standard Colombian can make a good cup, however.
But, the real secret, at least with a Melitta (perhaps with a French press, too)?
Don't boil your water. 195 degrees American is the best temperature, I believe. Apparently, boiling water pulls out too much of the acidity. At least, that's what my roaster told me, and it really helps even when you're stuck with something generic, like Folgers or Yuban.
I spent a lot of time in that store, right as the coffee craze hit. Then they changed hands, and it's never been quite the same.
Dang, I may have to go get some good estate coffee now, thanks!
Edit: OK, yeah, in Step 4 of
their brewing tips, they suggest 200 degrees. They also suggest that you pour in just a bit to "bloom" the coffee. I do this with mine, and it really does help. But I don't know that you want to bring the water to a boil, but maybe it doesn't matter.